99350561 has 2 divisors, whose sum is σ = 99350562. Its totient is φ = 99350560.

The previous prime is 99350509. The next prime is 99350579. The reversal of 99350561 is 16505399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80209936 + 19140625 = 8956^2 + 4375^2 .

It is an emirp because it is prime and its reverse (16505399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99350561 - 2²⁶ = 32241697 is a prime.

It is not a weakly prime, because it can be changed into another prime (99350161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49675280 + 49675281.

It is an arithmetic number, because the mean of its divisors is an integer number (49675281).

Almost surely, 2^99350561 is an apocalyptic number.

It is an amenable number.

99350561 is a deficient number, since it is larger than the sum of its proper divisors (1).

99350561 is an equidigital number, since it uses as much as digits as its factorization.

99350561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 99350561 is about 9967.4751567285. The cubic root of 99350561 is about 463.1518906670.

The spelling of 99350561 in words is "ninety-nine million, three hundred fifty thousand, five hundred sixty-one".